Manual Transmission T56 | T5 | MN12 | Clutches | Hydraulics | Shifters

How rounded can syncro teeth be?

Thread Tools
 
Search this Thread
 
Old Mar 29, 2009 | 07:14 PM
  #1  
C5kid's Avatar
Thread Starter
TECH Regular
iTrader: (12)
 
Joined: Mar 2003
Posts: 453
Likes: 0
From: Hershey, PA
Default How rounded can syncro teeth be?

I bought a T-56 a few months back that needed rebuilt. Finally I had the time to tear it down and see what was the matter.

Everything looked fine except the 3-4 syncro, which was the reason the tranny was pulled in the first place. It had a hard time shifting into 4th above 4k.

The teeth are worn, I am working on getting a pic.

The next problem is this is out of a Vette. So far I can't find a place that sells the 3-4 syncro for a vette. Everything is F-body or Viper.

Could someone post up a pic of a worn syncro?

I will try to get a pic up shortly.
Reply
Old Mar 29, 2009 | 07:45 PM
  #2  
C5kid's Avatar
Thread Starter
TECH Regular
iTrader: (12)
 
Joined: Mar 2003
Posts: 453
Likes: 0
From: Hershey, PA
Default


Reply
Old Mar 29, 2009 | 07:59 PM
  #3  
85MikeTPI's Avatar
TECH Addict
iTrader: (9)
 
Joined: Jun 2008
Posts: 2,172
Likes: 10
From: Newark, DE
Default

The blocker ring is what actually synchronizes the shift, the slider (shown) just engages the gear. This slider appears too rounded to give you the quick/firm shifts, though it would continue to work. It was rounded off because the blocker didn't sync the shift well/fast enough. Check/replace the 4th gear (input) blocker ring, and replace the 3/4 slider.

Have you check with Tremec dealers for the vette C5 synchro? (1386-590-006) I can't imagine them not being able to order one? I have a brand new one (came with a core I bought) if you can't locate one.
Reply




All times are GMT -5. The time now is 05:52 PM.

story-0
10 Reasons Daily Driving a Swap Project SUCKS! (& 1 Reason to Do It Anyway)

Slideshow: 10 reasons daily-driving a swap project might not be for you. Or is it?

By Michael S. Palmer | 2026-06-17 09:39:05


VIEW MORE
story-1
6 Gifts Neither Your Dad Nor Grad Will Shove Into the 'Trinket Drawer'

Don't get dad new socks or a grill brush this year.

By Brett Foote | 2026-06-09 14:55:56


VIEW MORE
story-2
Topdon ONE vs. Artidiag 800 BT2: Which is the Diagnostic Tablet For You?

Slideshow: We take a close look at the ONE and Artidiag 800BT2 diagnostic tools from Topdon and the reasons to buy one over the other.

By Pouria Savadkouei | 2026-06-18 10:26:23


VIEW MORE
story-3
Gas Monkey Built a 6-Wheel Ferrari Testarossa With a Corvette LT4 Engine

Slideshow: The controversial Ferrari F6 swaps its original flat-12 for a Corvette Z06-derived LT4 V8 and sends power to four rear wheels through a custom-built drivetrain.

By Verdad Gallardo | 2026-05-26 18:23:54


VIEW MORE
story-4
7 Most Reliable High-Performance Engines GM Has Ever Built

Slideshow:These GM engines didn't just make huge power, they survived abuse, boost, track days, and six-digit mileage with a reputation for refusing to quit.

By Verdad Gallardo | 2026-05-21 16:45:27


VIEW MORE
story-5
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-6
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-7
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-8
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-9
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE